Page layout messing up and not working

Hi, I created a site at this address using the plugin:

http://musodatabase.com/comp/win-a-custom-ad-snare-drum/

It works perfectly well. However, when I ported the site over to the new site I planned to use it on it now displays like this:

http://drummersdatabase.com/comp/2012/06/22/win-a-custom-ad-snare-drum/

The new site is a multisite install whereas the other site wasn't. I used the export function of wordpress to port over all images and content etc then copied the files using FTP. I'm not sure if any of this could've made a difference?

I've even copied the exact same plugin folder from the working site to the new one and that seems to have had no effect.

Any ideas? Please help :slight_frown: